Comparison of an optical particle-size monitor and a cascade impactor for in-stack source testing

Technical Report · Tue Jan 01 04:00:00 EST 1985

OSTI ID:6534388

Conner, W D; Knapp, K T

Particle-size measurements by a prototype in-stack optical particle-size monitor are compared to concurrent particle-size measurements by an in-stack cascade impactor at three coal-fired fly-ash sources. The results indicate that the optical monitor and impactor size measurements defined similar particle size distributions between 0.2 and 20 micrometers. Particles smaller than 0.2 micrometers as expected, were not observed by the optical sizer. Particles larger than 20 micrometers were also not expected to be detectable but the optical instrument may have some sensitivity to the larger-size particles. Mean size measurements by the optical instrument were always larger than similar measurements by the impactor.

• Research Organization: Environmental Protection Agency, Research Triangle Park, NC (USA). Atmospheric Sciences Research Lab.
• OSTI ID: 6534388
• Report Number(s): PB-87-178794/XAB; EPA-600/J-85/481
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010900 -- Coal
Lignite
& Peat-- Environmental Aspects
014000* -- Coal
Lignite
& Peat-- Combustion
AIR POLLUTION MONITORING
CARBONACEOUS MATERIALS
CASCADE IMPACTORS
CHIMNEYS
COAL
COMBUSTION PRODUCTS
ENERGY SOURCES
FOSSIL FUELS
FUELS
MANAGEMENT
MATERIALS
PARTICLE SIZE
SIZE
STACK DISPOSAL
WASTE DISPOSAL
WASTE MANAGEMENT